LTC2636IMS-LMX10#TRPBF

Overview

The LTC2636IMS-LMX10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a temperature coefficient of 10ppm/°C and operates in external reference mode, setting the full-scale output to the REF pin voltage. The device utilizes a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. It includes rail-to-rail output buffers, guaranteed monotonicity over the industrial temperature range of –40°C to 85°C, and power-on reset to mid-scale. The component is housed in a 16-lead MSOP package.

Feature Summary

• Octal architecture with eight independent 10-bit DAC channels
• Integrated 10ppm/°C precision reference with selectable internal or external operation
• Rail-to-rail output buffers ensuring guaranteed monotonicity
• 3-wire serial interface supporting clock rates up to 50MHz

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics
• Optical networking infrastructure

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the IMS designation corresponds to the 16-lead MSOP package and Industrial temperature grade. Ensure the LMX10 code matches the requirement for 10-bit resolution and mid-scale reset in external reference mode before finalizing procurement orders.

Selection Notes

Select this part when eight simultaneous analog outputs are required within a compact footprint. Choose the LMX variant if system initialization requires outputs to settle at mid-scale rather than zero-scale. Verify that the external reference voltage source can drive the REF pin input impedance without exceeding the specified supply current limits during power-down states.

Part Context

This component belongs to the LTC2636 family, which offers various resolutions (8, 10, 12-bit) and package options including DFN and MSOP. The IMS-LMX10 specifically targets industrial applications requiring moderate accuracy and fast settling times. It serves as a high-channel-count solution for multi-channel signal generation where space constraints preclude using single-channel DACs.

Replacement Considerations

Direct substitutes include other parts within the LTC2636 family such as the LTC2636IMS-LMI10#TRPBF, which differs only in the power-on reset behavior (zero-scale vs mid-scale). For different resolutions, the LTC2636IMS-LMX12#TRPBF or LTC2636IMS-LMX8#TRPBF may be considered if bit-depth adjustments are acceptable.